Research & Evidence · The record
All 54 flagged claims, verbatim.
The complete annex to Study 01: every false, stale, or invented claim the fact-check caught, printed as the engine said it, with the correction and its primary sources. Captured 2026-07-09.
Liquid Death liquiddeath.com
Perplexity misattributes Liquid Death's founding to Mike Cessario 'as co-founder alongside' Michael Dubin (Dollar Shave Club) and Biz Stone (Twitter) - both are just investors, not co-founders; the real co-founders (Jon-Ryan Riggins, Pat Cook) go unmentioned.
- Wrong
“founded in 2015 by Mike Cessario”
Claude (no web) · 2026-07-09
What’s actually trueLiquid Death was founded by Mike Cessario in 2017 (trademark filed July 2017; company formally incorporated Dec 2018), with consumer sales launching January 2019 - 2015 is not supported by any source, as of 2026. [1]
- Wrong
“Cessario remains the owner (as co-founder alongside tech investors Michael Dubin and Biz Stone) and serves as the CEO”
Perplexity · 2026-07-09
- Outdated
“Sourced from the Austrian Alps”
ChatGPT (search) · 2026-07-09
What’s actually trueLiquid Death's water was sourced from the Austrian Alps only at launch; as of 2023 the company shifted to US mountain sources and cans are now bottled in Bland, Virginia and Mackay, Idaho - still true as of 2026. [1]
- Wrong
“raised significant venture funding (hundreds of millions) from investors including Bain Capital, Red Sea Capital, and others”
Grok · 2026-07-09
What’s actually trueNo evidence Bain Capital or Red Sea Capital have invested in Liquid Death; confirmed investors include Science Inc., Live Nation, Velvet Sea Ventures, PowerPlant Partners, SuRo Capital, and Ares Commercial Finance, as of 2026. [1]
Nike nike.com
Two engines without live web access (claude and grok, on the 'facts' prompt) both confidently named John Donahoe as Nike's current CEO - he retired in fall 2024 and Elliott Hill has run the company for 21 months as of this check.
- Outdated
“- CEO: John Donahoe (since 2020)”
Claude (no web) · 2026-07-09
What’s actually trueJohn Donahoe was Nike CEO 2020–2024 but retired in September/October 2024; Elliott Hill has been President and CEO since October 2024 and remains so as of July 2026. [1]
- Outdated
“Current CEO: John Donahoe (since January 2020). He succeeded Mark Parker.”
Grok · 2026-07-09
What’s actually trueJohn Donahoe stepped down as CEO in fall 2024; Elliott Hill has been President and CEO since October 2024, still in the role as of July 2026. [1]
- Wrong
“- Second-largest apparel company globally”
Claude (no web) · 2026-07-09
What’s actually trueNike is the world's LARGEST sportswear/athletic-apparel company by revenue (~$51B FY2024); Adidas is the #2 player, not Nike, as of 2026. [1]
Patagonia patagonia.com
Non-web-search claude flubs Patagonia's single most famous fact - the 2022 'Earth is now our only shareholder' full-company giveaway - by describing it as Chouinard transferring only 'his 2% personal stake,' when in fact the ENTIRE company (100% of shares, split 2% voting / 98% non-voting) went to the Trust and the Holdfast Collective nonprofit.
- Wrong
“Chouinard transferred his 2% personal stake to the Patagonia Purpose Trust, making the company effectively benefit-corporation-owned.”
Claude (no web) · 2026-07-09
What’s actually trueMaterially mischaracterizes the 2022 transfer: Chouinard and family gave away the ENTIRE company (100% of shares) - the voting shares (2% of total equity) went to the Patagonia Purpose Trust, but the other 98% of equity (non-voting) went to the Holdfast Collective nonprofit, not retained or unmentioned; describing it as merely a '2% personal stake' understates the scope of the single most famous fact about Patagonia's ownership ("Earth is now our only shareholder"). [1]
- Wrong
“No major product-safety, labor-scandal, or financial-integrity issues have surfaced in the last two years that would distinguish it negatively from peers.”
Grok · 2026-07-09
What’s actually trueContradicted by two live 2025-2026 controversies within the stated window: Patagonia's January 2026 trademark lawsuit against drag activist Pattie Gonia (major public backlash) and its FY2025 Impact Report drawing greenwashing criticism for rising emissions and missed recycling targets. [1][2]
Southwest Airlines southwest.com
Non-web-search engines (claude, grok) confidently list Southwest's two most famous signature differentiators - free checked bags and open seating - as current facts, when both were eliminated in the past 14 months (bags: May 2025, now $45/$55; open seating: ended January 27, 2026 after 54 years) - the brand's core identity got reported exactly backwards.
- Wrong
“In December 2023, the airline experienced a significant operational failure, leading to nearly 17,000 flight cancellations and stranding over 2 million travelers.”
ChatGPT (search) · 2026-07-09
- Outdated
“operating to 121 airports across 12 countries as of 2025”
Perplexity · 2026-07-09
- Outdated
“No fees for: First checked bag, second checked bag (their main differentiator)”
Claude (no web) · 2026-07-09
- Wrong
“No assigned seats - open seating can be chaotic; you board by group”
Claude (no web) · 2026-07-09
What’s actually trueNo longer true as of 2026-07-09. Southwest ended open seating and switched to assigned seating on January 27, 2026. [1]
- Outdated
“Passengers on Basic, Choice, and Choice Preferred Fares now need to pay $35 for the first checked bag and $45 for a second one.”
Claude (web) · 2026-07-09
What’s actually trueThose were the original May 2025 launch fees. Southwest raised checked-bag fees again effective April 9, 2026, to $45 (first bag) and $55 (second bag) - the $35/$45 figures are no longer current. [1]
- Wrong
“two free checked bags, open seating (with priority boarding options)”
Grok · 2026-07-09
- Wrong
“potential bag fees for basic fares (not yet implemented but discussed)”
Grok · 2026-07-09
What’s actually trueBag fees were not merely 'discussed' - they were implemented over a year before this response was captured (announced March 2025, effective May 28, 2025, raised again April 2026). [1]
X x.com
Grok flatly stated 'CEO: Elon Musk (he has held the role since the acquisition)' - Linda Yaccarino was actually CEO for two full years (2023–2025) and, since her July 2025 resignation, X has run without any confirmed CEO for a full year as of this check, with prediction markets betting against a named successor arriving soon.
- Outdated
“It now operates as X Corp., which is owned by Musk’s X Holdings.”
Grok · 2026-07-09
What’s actually trueSince March 2025 X Corp has been owned by xAI (all-stock deal, valuing X at $33B), under new parent xAI Holdings Corp, and in February 2026 xAI itself was absorbed into SpaceX (forming 'SpaceXAI') for $250B in stock - X Corp is now several layers removed from a standalone 'Musk's X Holdings,' with Musk's control running through his ~79% SpaceX voting power. [1][2]
- Wrong
“CEO: Elon Musk (he has held the role since the acquisition).”
Grok · 2026-07-09
What’s actually trueLinda Yaccarino was CEO of X from June 2023 until she resigned on July 9, 2025; Musk was never confirmed as CEO. As of 2026-07-09 X has operated without a permanent CEO for a year (Musk holds Chairman/CTO-type roles; oddsmakers on Polymarket don't expect a named successor - e.g. Nikita Bier - anytime soon). [1][2]
- Outdated
“Higher tiers (Premium+ or Verified Organizations) range from ~$16–$30+/month.”
Grok · 2026-07-09
- Wrong
“"Brand X" is a name associated with multiple entities across different industries.”
ChatGPT (search) · 2026-07-09
What’s actually trueThe brand in question is X, formerly Twitter (x.com), the social platform owned via X Corp. ChatGPT instead described unrelated entities literally named 'Brand X' (a 1970s jazz fusion band, a consulting firm, a firearms maker, an apparel company) and never addressed the social media company. [1]
- Wrong
“Brand X is not a commercial brand but a British jazz fusion band formed in London in 1974”
Perplexity · 2026-07-09
What’s actually trueThe brand in question is X, formerly Twitter (x.com). Perplexity answered about an unrelated 1970s jazz fusion band called 'Brand X' and never addressed the social media company. [1]
- Outdated
“now operated by X Corp under Elon Musk's ownership (acquired in late 2022)”
Grok · 2026-07-09
- Outdated
“Headquarters moved from San Francisco to Austin, Texas in 2024”
Perplexity · 2026-07-09
What’s actually trueX's relocated headquarters is in Bastrop, Texas (about 30 miles east of Austin, inside Musk's 'Hyperloop Plaza' complex), not Austin proper; the SF office was permanently closed in September (per local reporting), settling later than the original 2024 Austin plan Musk first floated. [1][2]
WeightWatchers weightwatchers.com
WeightWatchers has burned through three CEO states in under two years (Sima Sistani -> Tara Comonte -> vacant, interim 'Office of the CEO' as of 2026-07-09) and every single engine's 'facts' response named an already-departed CEO - Claude and Grok both still asserted Sima Sistani, who left the role back in September 2024, two CEOs out of date.
- Wrong
“CEO: Sima Sistani (as of recent years)”
Claude (no web) · 2026-07-09
What’s actually trueSima Sistani departed as CEO in September 2024. Tara Comonte then served as CEO from February 2025 until her resignation effective March 31, 2026; as of 2026-07-09 there is no permanent CEO - an interim 'Office of the CEO' (CFO Felicia DellaFortuna + COO Jon Volkmann) is running the company while a search continues. [1]
- Wrong
“CEO: Sima Sistani (appointed 2022)”
Grok · 2026-07-09
- Outdated
“As of February 2025, Tara Comonte serves as the interim CEO”
ChatGPT (search) · 2026-07-09
What’s actually trueComonte was later confirmed in the role but resigned effective March 31, 2026; as of 2026-07-09 there is no CEO - an interim 'Office of the CEO' (CFO + COO) is covering while the board searches for a permanent successor. [1]
- Outdated
“President & CEO is Tara Comonte”
Perplexity · 2026-07-09
What’s actually trueComonte resigned effective March 31, 2026. As of 2026-07-09 the CEO role is vacant, covered by an interim Office of the CEO while the board searches for a permanent successor. [1]
- Outdated
“Tara Comonte has been the President and CEO of WeightWatchers since February 2025.”
Gemini 2.5 Pro · 2026-07-09
What’s actually trueComonte resigned effective March 31, 2026. As of 2026-07-09 the CEO role is vacant, covered by an interim Office of the CEO while the board searches for a permanent successor. [1]
- Outdated
“Oprah Winfrey is a significant shareholder and board member (joined in 2015)”
Claude (no web) · 2026-07-09
What’s actually trueOprah Winfrey resigned from the WW board in February 2024 and donated all her shares to the National Museum of African American History and Culture, citing a desire to speak freely about weight-loss medication use; she is neither a board member nor a shareholder as of 2026-07-09. [1]
Celsius celsius.com
Claude's plain 'claude' engine invented an entirely fictitious Celsius origin story in one response - crediting a nonexistent 'Gatorade co-founder John Wakeman' plus Bang Energy founder Jack Owoc as Celsius's founders and CEO, and placing the HQ in Miami and PepsiCo as a majority owner - all four facts fabricated or wrong in a single answer.
- Fabricated
“founded in 2004 by Gatorade co-founder John Wakeman and entrepreneur Jack Owoc”
Claude (no web) · 2026-07-09
What’s actually trueCelsius was founded in 2004 by Steve Haley and his wife Janice Haley (the drink concept was developed by formulator Greg Horn in 2003 and licensed via Elite FX); 'John Wakeman' has no documented role at Celsius, and Jack Owoc founded rival Bang Energy/VPX, not Celsius, as of 2026-07-09. [1][2]
- Wrong
“The company is headquartered in Miami, Florida.”
Claude (no web) · 2026-07-09
- Fabricated
“CEO: John Wakeman (co-founder)”
Claude (no web) · 2026-07-09
- Wrong
“PepsiCo acquired a majority stake in 2022, though Celsius remains independently operated”
Claude (no web) · 2026-07-09
What’s actually truePepsiCo's 2022 investment bought a minority (~8.5%) stake via convertible preferred stock for $550M, not a majority stake; PepsiCo's stake rose to roughly 11% after a further $585M preferred-stock purchase tied to the August 2025 Rockstar deal, still a minority position as of 2026-07-09. [1][2]
- Outdated
“acquired an 8.5% ownership stake in 2022 through a $550 million investment”
Perplexity · 2026-07-09
What’s actually true8.5% was accurate for the 2022 PepsiCo stake, but PepsiCo increased its stake to approximately 11% via an additional $585M preferred-stock purchase completed August 28, 2025 alongside the Rockstar Energy US/Canada acquisition, so as of 2026-07-09 the current figure is closer to 11%. [1][2]
- Outdated
“The judgment was upheld on appeal in December 2024, though possibly with a reduced amount”
Perplexity · 2026-07-09
What’s actually trueThe December 2024 Fourth District Court of Appeal ruling did not simply uphold the $82.6M verdict - it found the trial court used the wrong stock-valuation date and sent damages back for recalculation (a likely reduction to roughly $40-100M); the Florida Supreme Court then declined further review in November 2025, finalizing the case as of 2026-07-09, a step this response omits. [1][2]
- Fabricated
“a company was later founded in 2004 by Molly Kate Roberts, Lucy Kate Gaunt, Caroline Rueff, Irina Lorenzi, and Steve Haley”
Claude (web) · 2026-07-09
What’s actually trueNo primary source (SEC filings, Wikipedia, company history) names Molly Kate Roberts, Lucy Kate Gaunt, or Caroline Rueff as Celsius co-founders; these names trace to low-quality SEO 'company history' content-farm sites, not verifiable records. The credible founding team is Steve Haley and wife Janice Haley, with Greg Horn credited as the drink's original formulator, as of 2026-07-09. [1][2]
AG1 drinkag1.com
Claude's 'claude' engine fabricated a complete alternate ownership history for AG1 - inventing co-founders 'Chris Palmer and Dan Bilzerian,' a nonexistent Thorne HealthTech acquisition in 2022, and Chris Palmer as sitting CEO - none of which has any basis; the real founder is Chris Ashenden and the real CEO since July 2024 is Kat Cole.
- Fabricated
“AG1 was founded in 2010 by Chris Palmer and Dan Bilzerian as "Athletic Greens."”
Claude (no web) · 2026-07-09
- Fabricated
“Thorne HealthTech acquired AG1 in 2022”
Claude (no web) · 2026-07-09
- Fabricated
“Chris Palmer (co-founder) remains heavily involved with the brand, though he operates under Thorne's ownership”
Claude (no web) · 2026-07-09
What’s actually trueThis compounds a prior fabrication - there is no 'Chris Palmer' associated with AG1. AG1's CEO since July 2024 is Kat Cole, succeeding founder Chris Ashenden, who resigned after his 2011 New Zealand criminal convictions became public, as of 2026-07-09. [1]
- Fabricated
“AG1 (formerly Athletic Greens) was founded in 2010 by Dr. Andrew Hale (a New Zealand naturopath) and Spencer Nadolsky”
Perplexity · 2026-07-09
What’s actually trueNo public record ties a 'Dr. Andrew Hale' or Spencer Nadolsky to AG1's founding; the sole credited founder is Chris Ashenden, a former New Zealand police officer, as of 2026-07-09. [1]
- Wrong
“the CEO is Dr. Andrew Hale (who has remained in this role since inception)”
Perplexity · 2026-07-09
What’s actually trueAG1's CEO is Kat Cole, who has held the role since July 2024, succeeding founder Chris Ashenden; there has been a leadership change since inception, and no 'Dr. Andrew Hale' has led the company, as of 2026-07-09. [1]
- Wrong
“It was founded by Brian Johnson and markets itself as a comprehensive “nutritional insurance” drink”
Grok · 2026-07-09
- Outdated
“Chris Ashenden remains the founder and has been the public face; day-to-day executive leadership has included other C-suite hires”
Grok · 2026-07-09
- Wrong
“Austin, Texas (U.S. operations and branding are now centered there after earlier operations in New Zealand/Australia and a period in New York)”
Grok · 2026-07-09
What’s actually trueNo source ties AG1's headquarters to Austin, Texas. AG1 Inc. is registered in Carson City, Nevada and operates as a fully remote company with no formal headquarters, as of 2026-07-09. [1]
- Wrong
“costs approximately $90–$100 per month (for a 30-day supply)”
Perplexity · 2026-07-09
What’s actually trueAs of 2026-07-09, drinkag1.com prices the standard monthly subscription (30 servings) at $79 and a one-time purchase at $99 - the '$90-100/month' range doesn't match either published price point. [1]
- Wrong
“AG1 is one of the most expensive green powders, costing approximately $149/month”
Perplexity · 2026-07-09
What’s actually trueAG1's actual current pricing as of 2026-07-09 is $79/month via subscription or $99 for a one-time 30-serving pouch, not $149/month. [1]
Glossier glossier.com
Grok invented a Glossier CEO who doesn't exist in that role: 'Henry Davis' was actually Glossier's President/COO who left in 2018 and is now CEO of an unrelated startup (Sakara Life) - half of the six engines (perplexity, claude, grok) got the current CEO wrong in three different ways, none landing on the real answer, Colin Walsh (CEO since Oct 2025).
- Outdated
“Current CEO: Kyle Leahy, former Chief Commercial Officer of Glossier and executive at Cole Haan, appointed in May 2022”
Perplexity · 2026-07-09
- Outdated
“Emily Weiss founded Glossier in 2014, starting from her popular beauty blog "Into The Gloss." She serves as CEO.”
Claude (no web) · 2026-07-09
- Fabricated
“The current CEO is Henry Davis (appointed internally after Weiss’s transition).”
Grok · 2026-07-09
- Outdated
“Glossier is a valued $1.2 billion brand for its”
Perplexity · 2026-07-09
- Outdated
“which helped it achieve a valuation of over $1.2 billion.”
Gemini 2.5 Pro · 2026-07-09
What’s actually trueSame stale figure - Glossier's valuation has since fallen well below $1.2B (peaked at $1.8B in 2021, reported "south of a billion" by April 2025), and the company underwent major layoffs and store closures in 2026. [1]
OpenAI openai.com
Perplexity fabricated a full leadership coup that never happened: it claimed OpenAI 'ousted Sam Altman as CEO in October 2025' and installed Greg Brockman as CEO, apparently conflating the real October 2025 event (the PBC corporate restructuring) with the real-but-reversed November 2023 board ouster - Altman was on CNBC as sitting CEO the same day (2026-07-09) this response was captured.
- Fabricated
“OpenAI ousted Sam Altman as CEO in October 2025, and Greg Brockman is now the CEO”
Perplexity · 2026-07-09
What’s actually trueFalse. Sam Altman remains OpenAI's CEO as of 2026-07-09 (confirmed by a live CNBC interview with Altman as CEO that same day). October 2025 was when OpenAI completed its restructuring into OpenAI Group PBC / OpenAI Foundation - an ownership/structure change, not a CEO change. Brockman is co-founder/President, not CEO. [1][2]
- Outdated
“OpenAI converted to a capped-profit model in 2019. It's majority-backed by Microsoft (which has invested over $10 billion), with additional investors including Thrive Capital and others.”
Claude (no web) · 2026-07-09
- Outdated
“In 2019 it restructured into a “capped for-profit” company (OpenAI Global, LLC / OpenAI LP) while keeping a non-profit parent.”
Grok · 2026-07-09
What’s actually trueThat 2019 capped-profit structure was replaced on October 28, 2025 by a new structure: OpenAI Group PBC (for-profit, public benefit corporation) controlled by the OpenAI Foundation, with Microsoft at a fixed ~27% stake - grok's answer describes the pre-2025 structure as if still current. [1]
This is what the engines say when nobody checks.
Reference the study as "The State of AI Search, Jinn Research, captured 2026-07-09" and link the page so readers can check every quote against the record.
Jinn